// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_RENDERER_RESIZING_MODE_SELECTOR_H_
#define CONTENT_RENDERER_RESIZING_MODE_SELECTOR_H_

#include "base/macros.h"

namespace content {

class RenderWidget;
struct ResizeParams;

// Enables switching between two modes of resizing:
// 1) The "normal" (asynchronous) resizing, which involves sending messages to
//    and receiving them from host; and
// 2) The synchronous mode, which short-circuits the resizing logic to operate
//    strictly inside renderer.
// The latter is necessary to support a handful of layout tests that were
// written with the expectation of a synchronous resize, and we're going to
// eventually rewrite or remove all of them. See http://crbug.com/309760 for
// details.
class ResizingModeSelector {
public:
    ResizingModeSelector();
    bool NeverUsesSynchronousResize() const;
    bool ShouldAbortOnResize(RenderWidget* widget, const ResizeParams& params);

    void set_is_synchronous_mode(bool mode);
    bool is_synchronous_mode() const;

private:
    bool is_synchronous_mode_;

    DISALLOW_COPY_AND_ASSIGN(ResizingModeSelector);
};

} // namespace content

#endif // CONTENT_RENDERER_RESIZING_MODE_SELECTOR_H_
